63 lines
1.0 KiB
NASM
63 lines
1.0 KiB
NASM
;
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; Copyright (C) 2019 Intel Corporation. All rights reserved.
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; SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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;
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_TEXT SEGMENT
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; rcx func_ptr
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; rdx argv
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; r8 n_stacks
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invokeNative PROC
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push rbp
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mov rbp, rsp
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mov r10, rcx ; func_ptr
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mov rax, rdx ; argv
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mov rcx, r8 ; n_stacks
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; fill all fp args
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movsd xmm0, qword ptr [rax + 0]
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movsd xmm1, qword ptr [rax + 8]
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movsd xmm2, qword ptr [rax + 16]
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movsd xmm3, qword ptr [rax + 24]
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; check for stack args
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cmp rcx, 0
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jz cycle_end
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mov rdx, rsp
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and rdx, 15
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jz no_abort
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int 3
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no_abort:
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mov rdx, rcx
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and rdx, 1
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shl rdx, 3
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sub rsp, rdx
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; store stack args
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lea r9, qword ptr [rax + rcx * 8 + 56]
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sub r9, rsp ; offset
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cycle:
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push qword ptr [rsp + r9]
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loop cycle
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cycle_end:
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mov rcx, [rax + 32]
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mov rdx, [rax + 40]
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mov r8, [rax + 48]
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mov r9, [rax + 56]
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sub rsp, 32 ; shadow space
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call r10
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leave
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ret
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invokeNative ENDP
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_TEXT ENDS
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END
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